Major Features

Hook System (New)

• Pre/Post Tool Hooks: Execute custom commands before and after tool operations
• PreToolUse - Run commands before tools execute (e.g., validation, logging)
• PostToolUse - Run commands after tools complete (e.g., notifications, cleanup)
• Stop - Execute commands when Claude stops responding
• Notification - Trigger commands for system notifications
• Hook Configuration: Configure hooks with matchers to target specific tools or patterns
• Support for regex and pipe-separated matchers
• Hooks can approve/block operations or provide feedback
• JSON output parsing for structured hook responses
• 60-second timeout with automatic cancellation

Enhanced Search Tool (Grep)

• New Grep Tool: Powerful search based on ripgrep with advanced features
• Multiple output modes: content, files_with_matches, count
• Context lines support with -A, -B, -C flags
• Line numbers with -n flag
• Case-insensitive search with -i flag
• File type filtering with type parameter
• Glob pattern support for file filtering
• Multiline mode: Search across line boundaries with multiline: true
• Head limit to control output size
• Optimized for correct permissions and file access
• Never invokes grep or rg as bash commands directly